Thread protector



Maw, 18, 193.0,

P. LEONARD THREAD PROTECTOR Filed Aug. 14, 1929 Z. 8mm,

l" a 5 I I n f i ,5

/J gmmntoz Patented Mar. 18, 1930 p arne; i a

JOHN P.IIEONARD, F HAWLEY, PENNSYLVANIA THREAD PROTECTOR Applicationfiled August 14, 1929. Serial No. 385,827.

This invention relates to thread protectors for use upon feed rollersfor thread spinning machines.

The main object of the invention is to pro" vide thread protectors whichmay be used upon the conventional feed rollers employed in spinningmachines of various kinds for feeding the threads downward from theirspools into the spinning mechanism, the said thread protectors servingto prevent the threads from coming in contact with the gears operatingthe feed rollers thus preventing soiling or breaking of the threads.

Another object is to provide a thread protector for feed rollers whichwill be simple,

efficient and cheap in construction.

The foregoing and other objects together with means whereby the same maybe carried into effect will best be understood from the followingdescription of a preferred embodiment of the invention taken inconnection with the accompanying drawing wherein:

Figure 1 is a front elevation, partially in section, of the feed rollermechanism of a spinning machine illustrating the application of myinvention thereto.

Figure 2 is a side view of the feed rollers and their holder removedfrom the machine.

Figure 3 is a section along the line 3-3 in Figure 2.

Figure 4 is a detail view of'the thread protector alone.

Referring now more particularly. to the drawing 1 denotes a portion ofthe frame of a spinning machine in which is adjustably mounted thetripper rod 2 carrying the usual porcelain guide 3 through which thethreads 4: are passed from their spools (not shown) and combined anddirected downwardly into the frame 1 as shown at 5. A feed roller holder6 of conventional form is secured in the frame 1 and this holder has theside loops 7 to receive the short stud shafts 8 at either end of thefeed rollers 9. The feed rollers 9 carry pinions 10 which are ordinarilyof greater diameter than the roller itself and which are placed in meshwith the gear 11 on the drive shaft 12, the said rollers thus beingrotated in the same direction. The combined thread 5 is wrapped severaltimes around the feed rollers9 and over a porcelain roller 13 in theholder 6 as denoted at 14 and as the feed rollers 9 rotate the threadswill be drawn from their spools and fed downwardly into the machine aswill be understood. The foregoing elements are of conventional form andno invention is claimed therefor.

It is found in practice that the threads wrapped around the feed rollershave a tendency to come in contact with the pinions 10 so on theserollers thus causing the threads to become soiled or worn. To overcomethis q disadvantageous result I provide a thread protector 15for each ofthe feed rollers, the I said thread protector being in the form .of awasher slightly larger in diameter than the pinion on the feed roller asshown and having acentral aperture 16. In the usual construction of thefeed rollers 9 the roller proper is shouldered off or reduced at one endas shown at 17 and the pinion 10 is then driven on this reduced end 17The aperture 16 in the thread protecting washer 15 is of the cor rectsize to fit over this reduced end 17 and the protector is pushed upagainst he roller 9 and the pinion 10 mounted in its place thus securingthe protector between the roller and pinion as clearly shown in Figure2. The 7 thread protector or washer 15 thus prevents the threads fromcoming into contact with the pinion 10 as will be understood, Obviouslyother means may be used for mounting the thread protectors in place ifso desired.

'While I have herein set forth a certain preferred embodiment of myinvention itis understood that I may vary from the same in minorstructural details, not departingfrom the spirit of the invention andWithin the scope of the appended claim.

I claim: 1 I I J r In a device of the character described, in

combination With a feed roller having a re? duced end, a pinion adaptedto be'mounted on the said reduced end and being of greater diameter thanthe feed roller, a thread protecting Washerof greater diameter than thesaid pinion and having a central aperture to receive the said reducedend of the feed r011- er, the said thread protecting Washer beingmounted on the said reduced end between the feed roller and pinion.

In testimony whereof I aifix my signature.

J OHN P. LEONARD.

